private static void CalculateAndWriteStatisticConclusionsForOneParam(List <OneGameStatisticsDto> allGameStats, Func <OneGameStatisticsDto, int> parameterToCalculate, string gameParameterName)
{
//make a list of only selected gamer parameter from every game (i.e. filter out other game parameter types)
IEnumerable <int> rawParameterValueFromEachGame = allGameStats.Select(parameterToCalculate);
//do the statistics on this list of numbers
StaticsParametersOfAnArrayDto statResultsOfAGameParameter = MathemtaticalStatisticCalculator.CalculateStatsForOneParam(rawParameterValueFromEachGame);
//write results of the statistics analysis of the list of numbers
WriteStasForOneGameParam(statResultsOfAGameParameter, gameParameterName);
}
public static StaticsParametersOfAnArrayDto CalculateStatsForOneParam(IEnumerable <int> statisticParamterValueInAllGames)
{
StaticsParametersOfAnArrayDto statisticParameter = new StaticsParametersOfAnArrayDto
{
Avg = statisticParamterValueInAllGames.Average(),
StdDev = CalculateStandardDeviation(statisticParamterValueInAllGames.Select(number => (double)number)),
Min = statisticParamterValueInAllGames.Min(),
Max = statisticParamterValueInAllGames.Max()
};
return(statisticParameter);
}
/// <summary>
/// Clulcates relative deviation from the absolute one which is default.
/// Caluclate how many percents values deviate instead of for HOW MUCH they deviate.
/// </summary>
/// <param name="statisticParameter"></param>
/// <returns></returns>
private static double CalculateDeviationInPercents(StaticsParametersOfAnArrayDto statisticParameter)
{
double deviationInPercents;
if (statisticParameter.Avg != 0)
{
deviationInPercents = statisticParameter.StdDev / statisticParameter.Avg * 100;
}
else
{
deviationInPercents = double.NaN; //could be postive or ngeative infinity or undifined, but this scneario is not important that much
}
return(deviationInPercents);
}
private static void WriteStasForOneGameParam(StaticsParametersOfAnArrayDto statisticParameter, string gameParameterName)
{
//lower and uuper boundary values with certanity of 68% (i.e. values in range of one sigma to the left or to the rigt from the averge value)
double stdDevLowerBoundDecimal = statisticParameter.Avg - statisticParameter.StdDev;
double stdDevUpperBoundDecimal = statisticParameter.Avg + statisticParameter.StdDev;
double deviationInPercentsDecimal = CalculateDeviationInPercents(statisticParameter);
string decimalsFormatting = GetDecimalsFormatting(DecimalsToWrite);
//formating decimals to string
string avg = statisticParameter.Avg.ToString(decimalsFormatting);
string stdDev = statisticParameter.StdDev.ToString(decimalsFormatting);
string min = statisticParameter.Min.ToString(decimalsFormatting);
string max = statisticParameter.Max.ToString(decimalsFormatting);
string stdDevLowerBound = stdDevLowerBoundDecimal.ToString(decimalsFormatting);
string stdDevUpperBound = stdDevUpperBoundDecimal.ToString(decimalsFormatting);
string deviationInPercents = deviationInPercentsDecimal.ToString(decimalsFormatting);
Console.WriteLine($"{gameParameterName}: avg = {avg}, std dev = {stdDev}, min = {min}, max = {max}.");
Console.WriteLine($"Game will usually have {avg} +- {stdDev} (i.e. {stdDevLowerBound} - {stdDevUpperBound}) {gameParameterName.ToLower()}.\r\n"); // this statement has certanity of 68%
}
